list four quantum no. that defines energy state of the electron in hydrogen along with their possible values and explain their significance in terms of orbitals?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

What is i fracture in the crust called when land move up, down or sideways

What is the empirical formula for c4h8o2